Nov 01 02:40:51.320 INFO checking kbacha/string-clone-performance-rust against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 02:40:51.321 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +d7816399d50d407bbce1efe9dbadf8faaaf568fc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 02:40:51.724 INFO blam! 734bdb24d4386f71b79dacf4eed6d0dc6fe5a720b90f73f38c83a3f6bc175a17
Nov 01 02:40:51.726 INFO running `"docker" "start" "-a" "734bdb24d4386f71b79dacf4eed6d0dc6fe5a720b90f73f38c83a3f6bc175a17"`
Nov 01 02:40:54.691 INFO kablam! usermod: no changes
Nov 01 02:40:54.793 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Nov 01 02:40:55.499 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.499 INFO kablam!   --> src/main.rs:13:38
Nov 01 02:40:55.499 INFO kablam!    |
Nov 01 02:40:55.499 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.499 INFO kablam!    |                                      ^^^^^^^^^^
Nov 01 02:40:55.512 INFO kablam!    |
Nov 01 02:40:55.512 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 02:40:55.512 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.514 INFO kablam! 
Nov 01 02:40:55.514 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.514 INFO kablam!   --> src/main.rs:15:39
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.514 INFO kablam!    |                                       ^^^^^^^^^^
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.514 INFO kablam! 
Nov 01 02:40:55.514 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.514 INFO kablam!   --> src/main.rs:17:41
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.514 INFO kablam!    |                                         ^^^^^^^^^^
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.514 INFO kablam! 
Nov 01 02:40:55.514 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.514 INFO kablam!   --> src/main.rs:19:41
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 01 02:40:55.514 INFO kablam!    |                                         ^^^^^^^^^^
Nov 01 02:40:55.514 INFO kablam!    |
Nov 01 02:40:55.514 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.514 INFO kablam! 
Nov 01 02:40:55.528 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.528 INFO kablam!   --> src/main.rs:13:38
Nov 01 02:40:55.529 INFO kablam!    |
Nov 01 02:40:55.529 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.529 INFO kablam!    |                                      ^^^^^^^^^^
Nov 01 02:40:55.529 INFO kablam!    |
Nov 01 02:40:55.529 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 02:40:55.529 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.529 INFO kablam! 
Nov 01 02:40:55.531 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.531 INFO kablam!   --> src/main.rs:15:39
Nov 01 02:40:55.531 INFO kablam!    |
Nov 01 02:40:55.531 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.531 INFO kablam!    |                                       ^^^^^^^^^^
Nov 01 02:40:55.531 INFO kablam!    |
Nov 01 02:40:55.531 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.531 INFO kablam! 
Nov 01 02:40:55.531 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.531 INFO kablam!   --> src/main.rs:17:41
Nov 01 02:40:55.531 INFO kablam!    |
Nov 01 02:40:55.531 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 01 02:40:55.531 INFO kablam!    |                                         ^^^^^^^^^^
Nov 01 02:40:55.531 INFO kablam!    |
Nov 01 02:40:55.531 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.531 INFO kablam! 
Nov 01 02:40:55.533 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 01 02:40:55.533 INFO kablam!   --> src/main.rs:19:41
Nov 01 02:40:55.533 INFO kablam!    |
Nov 01 02:40:55.533 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 01 02:40:55.533 INFO kablam!    |                                         ^^^^^^^^^^
Nov 01 02:40:55.533 INFO kablam!    |
Nov 01 02:40:55.533 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 01 02:40:55.533 INFO kablam! 
Nov 01 02:40:55.577 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Nov 01 02:40:55.586 INFO kablam! su: No module specific data is present
Nov 01 02:40:56.966 INFO running `"docker" "rm" "-f" "734bdb24d4386f71b79dacf4eed6d0dc6fe5a720b90f73f38c83a3f6bc175a17"`
Nov 01 02:40:57.344 INFO blam! 734bdb24d4386f71b79dacf4eed6d0dc6fe5a720b90f73f38c83a3f6bc175a17